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1. Boxing, unpacking or aliases many of the introduction of C #. NET learning experience books on the introduction of the int-> Int32 is a boxing process, the reverse is the process of unpacking. This is true of many other variable types, such as short <-> int16,long <->int64. For the average programmer, it is not necessary to understand this process, because these boxes and unboxing actions can be automatically completed, do not need to write code to intervene. But we need to remember that ...

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Cnnic the updated Chinese domain name test system is the common wisdom of cooperation between the two sides of the four technical personnel. 　　Compatible, open, interoperable and conform to international technical standards are several important features of CNNIC domain Name System. 1) highly compatible, the global CNNIC domain Name System will also provide "Chinese domain name." ...

Base64 is one of the most commonly used encodings, such as the development of passing parameters, the <img/> tags in modern browsers to render pictures directly through Base64 strings, and for messages and so on.　　The BASE64 encoding is defined in RFC2045, which is defined as: Base64 content transfer encoding is designed to describe the 8-bit byte of any sequence as a form that is not easily recognized directly by the person. We know that any data is stored in binary form on the computer. One byte is 8 bits, one character is stored in the computer ...

Fifth section Shell Advanced 1, Know import table author: [YAtEs] [Jamesluton@hotmail.com] Translator: HYING[CCG] Title: PE Input Table Description There are a lot of articles about PE file, but I intend to write an article about the input table, Because it is useful for cracking. I want to explain it the best way is to give an example, you can follow me step by step, step-by-step thinking, and finally you will fully understand that I chose a small program I just downloaded, it is compiled with TASM, ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall recently in the study of JavaScript found some of the more supernatural things. 　　It's a bit of a typeof. For example: alert (nan = = Nan);//The result is false. Alert (typeof nan!= nan ...)

Earlier in this chapter discussed how to use SQL to insert data into a table. However, if you need to add many records to a table, it is inconvenient to use SQL statements to enter data. Fortunately, MySQL provides methods for bulk data entry, making it easy to add data to the table. This section, as well as the next section, describes these methods. This section describes the SQL language-level workarounds. 1, the basic syntax and syntax: LOAD DATA [LOCAL] INFILE 'file_name.txt' [REPLACE ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall before long with a few friends to explore how to do a large information site SEO. In fact, different project operation methods and strategies are not the same, concrete analysis of the specific situation. 　　SEO strategy is good or bad directly affect the different stages of the optimization effect. Share some of your SEO strategies here and how to do it. 　　In fact, this is also the old saying talked. One, the enemy 1. Identify your competitors and collect information on similar sites through various channels (daily traffic, Ale ...).

Cracked goal: To crack an encrypted ASP Trojan landing password. Because there is no version in the Trojan, specifically do not know what the name of this Trojan. Break the train of thought: Two kinds, use encrypt cipher to replace cipher text and use cipher text and encrypt algorithm to solve the password. The former is not really cracked. If you do not get the ASP source code, then can be said to crack the password, I have no chance of success. A Chinese friend said he got a web permission, but could not modify the home page, found that there is an ASP trojan, but the password is encrypted. Well, there's too much nonsense, so, make sure ...

The design of the URL is a very complex problem, I can't say there is a "right" solution-it is similar to other aspects of the design, there are good URL design, there are bad URL design, in the case between the two different-it is subjective. This does not mean, however, that there is no best practice for creating very good URLs. I hope I've learned some URL design best practices over the years to impress you, and I'll explain why I think using the new HTML5 JavaScript's his ...

Hadoop serialization and Writable Interface (i) introduced the Hadoop serialization, the Hadoop writable interface and how to customize your own writable class, and in this article we continue to introduce the Hadoop writable class, 　　This time we are concerned about the length of bytes occupied after the writable instance was serialized, and the composition of the sequence of bytes after the writable instance was serialized. Why to consider the byte length of the writable class large data program ...